I noticed that my guinea pig had lumps under her jaw and they kept growing so I took her to the vet. When I got there the vet said it was food stuck in there and was super happy it wasn't a tooth problem. He flushed out her cheeks with a syringe and the lumps disappeared, but gave me antibiotics and things because he said there was a burr that got stuck and it caused inflammation. I noticed today, however that the lumps (and the food) had reappeared and I flushed it out with the syringe again, but it seems like things keep getting stuck there. Is this normal ? or am I just paranoid now and it's easy to see because she's a skinny pig? Anyone else had a similar problem ?